Truck driver&#39;s hammer



FIG. 1 is a side elevational view of the truck driver's hammer showing my new design, the opposite side being substantially identical;

FIG. 2 is a left end elevational view thereof;

FIG. 3 is a right end elevational view thereof;

FIG. 4 is top plan view thereof; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a truck driver's hammer, substantially as shown and described. 